Filler from Expanded Glass as a Light-Weighing Component of the Cement Composite with Fiber Reinforcement

Abstract

Bulk density reduction of the cement composite is possible by the means of using suitable light fillers in a matrix or porous structure creation with an air-entraining agent. Both ways are more or less suitable or effective for proper parameter achievement. From the range of possible fillers with different material properties and influence on rheological parameters during production granulated expanded glass worked the best. By the means of laboratory testing an effect of two fillers based on expanded glass on the fiber reinforced cement composite was verified. Practical applicability was tested in the production of commonly manufactured glass fiber reinforced concrete elements, such as channels for electrical cable deposition and products for urban equipment.

Filler from Expanded Glass as a Light-Weighing Component of the Cement Composite with Fiber Reinforcement

“…Several types of filler in different fractions were used in a way to substitute 50-100% vol. of silica sand in the initial matrix according to their bulk density [1].…”

“…The first mixture marked as Liaver I consisted of granulated expanded glass in 75% substitution and 3.5% fiber content. The second mixture marked as Liaver II consisted of granulated expanded glass in 80% substitution and the fiber content was decreased to 2.5% for better workability and fluidity achievement [1].…”